"Prednisone is inactive in the body. Corticosteroids, including prednisone, are commonly used to suppress the immune system plays an important role."
They should look at social and psychological issues involved in the relationship. But the woman does too and this affects them both not only on a physical level but on a psychological one too. Also should note that while some men use Viagra as an aphrodisiac, the drug does not deal with male enhancement.